| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 17.945 | 21/6:16.845 |
| 2 | 1 | 17.293 | 21/6:09.999 |
| 3 | 1 | 18.432 | 21/6:15.690 |
| 4 | 1 | 17.734 | 21/6:14.871 |
| 5 | 1 | 17.940 | 21/6:15.245 |
| 6 | 1 | 18.228 | 21/6:16.502 |
| 7 | 1 | 18.340 | 21/6:17.736 |
| 8 | 2 | 18.503 | 20/6:01.038 |
| 9 | 2 | 20.373 | 20/6:06.196 |
| 10 | 2 | 17.623 | 20/6:04.822 |
| 11 | 2 | 22.880 | 20/6:13.256 |
| 12 | 2 | 19.228 | 20/6:14.198 |
| 13 | 2 | 18.222 | 20/6:13.448 |
| 14 | 2 | 19.063 | 20/6:14.006 |
| 15 | 2 | 17.655 | 20/6:12.612 |
| 16 | 1 | 17.839 | 20/6:11.623 |
| 17 | 1 | 18.589 | 20/6:11.632 |
| 18 | 1 | 18.106 | 20/6:11.103 |
| 19 | 1 | 17.120 | 20/6:09.593 |
| 20 | 1 | 18.496 | 20/6:09.609 |